#VU28463 Use of insufficiently random values in Spring Security


Published: 2020-06-01

Vulnerability identifier: #VU28463

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5408

CWE-ID: CWE-330

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Spring Security
Server applications / Frameworks for developing and running applications

Vendor: VMware, Inc

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the affected software uses a fixed null initialization vector with CBC Mode in the implementation of the queryable text encryptor. A remote authenticated attacker can derive the unencrypted values using a dictionary attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Spring Security: 4.2.0 - 5.3.1


External links
http://tanzu.vmware.com/security/cve-2020-5408
http://github.com/spring-projects/spring-security/issues/8317
http://github.com/spring-projects/spring-security/commit/d1909ec9c8844cfa6b63bab5c2591f14d714ef6b
http://snyk.io/vuln/SNYK-JAVA-ORGSPRINGFRAMEWORKSECURITY-570204


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability